Re: copy-datastoreitem ERROR : Unable to write data to the transport connection: An established connection was aborted by the software in your host machine

Thanks for the reply.

I had removed the -recurse but clearly left it in my paste oops.

I can happily browse the LUNs via the following

https://FQDNof Vcenter/folder?dcPath=DATACENTRE&dsName=LUNNAME

Which confirms both the service and the ports are open.

The vmstores name within $ds does indeed have the correct FQDN of my vCenter server.